When can you sex Barred Rocks?

[woolymama]

You guys are so funny! I actually think she just had zero clue (like me!) what she was doing. She kept asking if I'd like to take a look at any of her BR roosters. Apparently I already was!!!!
I just re-homed 2 of the boys to a family that is just starting out and has a bunch of young hens. One more to go. And then I'll need a bunch more ladies.